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Allow ModelField to specify defaults directly on class

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This commit is contained in:
Damien Nozay 2015-01-04 12:39:10 -08:00
parent 8471a4a2f7
commit 737f663d69
1 changed files with 6 additions and 4 deletions
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10
rest_framework/fields.py
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@ -1286,16 +1286,18 @@ class ModelField(Field):
default_error_messages = {
'max_length': _('Ensure this field has no more than {max_length} characters.'),
}
# allows subclasses to change defaults
max_length = None
def __init__(self, model_field, **kwargs):
self.model_field = model_field
# The `max_length` option is supported by Django's base `Field` class,
# so we'd better support it here.
max_length = kwargs.pop('max_length', None)
self.max_length = kwargs.pop('max_length', self.max_length)
super(ModelField, self).__init__(**kwargs)
if max_length is not None:
message = self.error_messages['max_length'].format(max_length=max_length)
self.validators.append(MaxLengthValidator(max_length, message=message))
if self.max_length is not None:
message = self.error_messages['max_length'].format(max_length=self.max_length)
self.validators.append(MaxLengthValidator(self.max_length, message=message))
def to_internal_value(self, data):
rel = getattr(self.model_field, 'rel', None)